The Sydney Science Festival is presenting a selection of astronomical events to celebrate National Science Week. The 10-day event, held at various venues across the city, has been popular with children and adults alike. This weekend, the festival will reach its conclusion but there's still a chance to take part in some of the fascinating activities or even attend one of the workshops.

This Friday evening, Harris Street will be lit up as the Powerhouse Museum hosts a light show. Beamed onto the Ultimo library and community centre, the show will demonstrate the science behind what makes things glow and how light can be used to create colourful explosions. If you're more of a star-gazer and fancy being a record breaker, you can also take part in the festival's attempt for a Guinness World Record for the most people simultaneously using a telescope, occurring in the grounds of the Sydney Observatory.

At the Redfern Community Centre on Saturday, get your hands dirty at the Indigenous Science Experience which demonstrates that value of traditional knowledge and Aboriginal culture in science. In addition to hands-on science shows and activities for all ages throughout the day, there will be a traditional smoking ceremony to round off the day. If you were lucky enough to get tickets, the Hordern Pavilion is playing host to world-renowned scientist, Dr Neil DeGrasses Tyson as he shares his wisdom and takes the audience on a journey of scientific discovery.

On Sunday, head to the Powerhouse Museum for a fast-paced public talk featuring presentations from four globally renowned female astronomers. Presented by ABC's Wendy Zuckerman, the event will give attendees the unique opportunity to ask these experts their own astronomical and space-themed questions.

For a full schedule of events, bookings and details, head to the Sydney Science Festival website.